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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body >
    <div>
       <h2>1.颜色和背景</h2>
    <ol>
        <li>
            <a href="./我是一个兵.html"><h3>我是一个兵，爱护老百姓。</h3> </a>
       
        </li>
        <li>     <a href="./精灵.html"><h3>字母</h3> </a></li>
        <li> <a href="./2.html"><h3>背景渐变</h3>  </a> </li>
    </ol>
    </div>
    
   
</body>
<style>
    div{
        border: 2px rgb(255, 102, 0) solid ;
        width: 600px;
       height: 400px;
        margin:auto;
        background-image: url(./src=http___i0.hdslb.com_bfs_article_46185c3fbbf4b427ff006e5f802e9f25496dba50.jpg&refer=http___i0.hdslb.jpg) ;
        background-clip: border-box;
        background-size: 600px 400px ;
        background-repeat: no-repeat;
    }
   
   
    a{
        color: brown;
        
    }
   
   
    a:hover{
        color: rgb(0, 4, 255);

    }
   
</style>
</html>